18744375

素因数分解:

$3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{769}}^1$

素因数の和:805

約数の個数: 40

約数和(自身を含む): 33676720

約数和(自身を除く): 14932345

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 625, 769, 975, 1625, 1875, 2307, 3845, 4875, 8125, 9997, 11535, 19225, 24375, 29991, 49985, 57675, 96125, 149955, 249925, 288375, 480625, 749775, 1249625, 1441875, 3748875, 6248125, 18744375]

約数ペア:

[(1, 18744375), (3, 6248125), (5, 3748875), (13, 1441875), (15, 1249625), (25, 749775), (39, 480625), (65, 288375), (75, 249925), (125, 149955), (195, 96125), (325, 57675), (375, 49985), (625, 29991), (769, 24375), (975, 19225), (1625, 11535), (1875, 9997), (2307, 8125), (3845, 4875)]